<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8"></meta>
<title>Insert title here</title>
</head>
<body>
	<h1>欢迎登录!</h1>
	<form action="sublogin" method="post">
	    <input type="text" name="username"><br>
	    <input type="password" name="password"><br>
	    <input type="submit" value="提交">
	</form>
</body>
</html>